Flush valve



April 7, 1 325.

' R. E. FIVEY rnusa wmva Filed A ril 15, 1922 I lm/e jfyeriEfgqey 9% Patented Apr. 7, 1925 UNITED STATES PATENT OFFICE.

ROBERT E. FIVEY, OF CHICAGO, ILLINOIS.

FLUSH V V Application filed A ril 15, 1222. Serial No. 552,853.

Valves, of which the following is a specification.

This invention relates to that type of water closet flushing valves which constitutes the subject matter of my prior Patent No. 1,202,499, dated October 24, 1916, and in which the slow closing of the movable main valve member is effected by an associated fluid motor, the inflow of motive fluid into which is of a restricted nature,

and the present improvement has for its object e To provide a structural formation and association of parts and mechanisms in the above mentioned type of flush valves, whereby a momentary opening of the relief valve of the fluid lnotorwith a full opening of the movable main valve member is attained, to be immediately succeeded by a closing of the relief valve and a corresponding immediate commencement of the slow closing movement of said movable, main valve member, with an avoidance of the usual waste of water which takes place when the relief valve is held open either by accident or intent in the ordinary means for manually opening the relief valve, all as will hereinafter more fully appear.

In the accompanying drawings Fig. 1, is a central vertical section on line 1.1. Fig. 2, of a flushing valve embodying the present improvement.

Fig. 2, is a top view of the same with the cap or cover removed.

Fig. 3, is a detail vertical section on line 3.3. of Fig. 2, illustrating the adjustable inlet passage to the piston chamber of the motor of the valve.

Like reference numerals indicate like parts in the several views.

As represented in the drawings, the general construction of the valve issubstantially the same, as that shown and described in my aforesaid Patent No. 1,202,499, with the exception that the fluid pressure supply passage to the piston chamber of the motor of the movable valve member is arranged at one side of the main casing, instead of having a central relation as in said patented construction.

In the drawings, 1 designates the main housing having an upper removable transverse partition 2 dividing the interior of the housing into an upper chamber having in turn a removable closure cap 3, and adapted to contain the operating mechanism of the valve, and into a lower piston chamber of the hereinafter described fluid motor which controls the opening and closing movements of the main movable valve member.-

4 designates an angular or approximately V shaped partition dividing the lower portion of the housing 1 into an inlet passage and an outlet passage 6, said partition having a central orifice 7 formed with an upstandingmarginal rim to constitute the stationary valve member or seat of the structure. 1

8 designates an opening in'the partition 2, having a seat for a movable valve head hereinafter described, and forming the relief outlet for the upper end of the piston chamber above referred to. In the construction shown the out-flow passes into the upper chamber of the housing, and from thence through a side passage 9 into the main outlet passage 6 of the structure.

10 designates a pressure supply passage extending'from the main inlet passage 5 to the upper end of the piston chamber aforesaid, and provided with the usual regulating screw stem 11, by which the flow of fluid through the passage is regulated.

12 designates the movable main valve head adapted for seating engagement on the upstanding rim of the orifice 7 aforesaid, and having at its upper end a piston head 13 formed for movement in the piston chamber aforesaid.

14 designates the usual operating rock shaft mounted in bearings in the upper end of the housing 1 with one end extending outside of said housing and provided with the usual jointed handle or lever 15 by which it canbe manually actuated-in one direction.

16 designates a spring associated with the rock shaft 14 and adapted to move the same in a direction opposite to that effected by the handle 15 and maintain the parts in a normal position ready for use.

17 designates a rock arm fixed on the shaft 14, within the upper chamber of the housing 1, with its free end constituting an opcrating toe for operative engagement with the relief valve mechanism now to be described.

18 designates the movable relief valve member above referred to, having an upwardly extending stem moving in a guide 19 on the partition 2 and having a spring 20, the tendency of which is to move said valve member to seating engagement with the valve seat or orifice 8 aforesaid.

21 designates a trip lever or member pivotally connected at its mid-length to the upper end of the stem of the valve member 18, with one end extending into the path of the operating toe of the arm 1'? aforesaid, to receive positive movement therefrom in one direction to effect an unseating of the valve member 18. The other end of said lever is fulcrumed beneath an adjustable abutment 22 on the interior of the housing 1. as shown, and is free to leave said abutment as the opposite end is tilted upwardly in a return movement of the operating toe of the arm 17 under the influence of the spring 16, and without any movement of the valve member 18 which has already reached its seat under the influence of the spring 20, aforesaid.

The operation of the present construction is as follows During the progress of the ordinary turning movement of the rock shaft 14, the operating toe of the arm 1? moves against the trip lever 21 to effect an opening movement of the relief valve 18. In its continued movement said operating toe passes downwardly out of engagement with the trip lever 21, to permit a reolosing of the relief valve 18 during the period in Which the manual turning of the rock shaft 14 is taking place, and so that the period of time in which the relief valve 18 is in its open position is of limited duration and cannot be affected by any manipulation on the part of the meddlesonie or mischievous operator. The limited duration in the open position of the valve member 18 is sufficient to start the required automatic operation of the main valve 13 in the flushing operation. With the present construction the duration of time in which the rock shaft 1 1 is held by its operating handle in a position against the tension of its operating spring 16, has

no effect on the period in which the relief valve 18 returns to its closed condition. And with the release of the handle 15 on the part of the operator, the spring 16 will return the rock shaft let to its original and normal position, and in doing so, the operating toe of the arm 17 will tilt the trip lever 21 in moving up past the same without imparting any movement to the relief valve 18.

The scope of the present invention embraces the substitution for the above described arrangement of the lever 21, any yielding construction of the parts which will permit of a return movement of the rock shaft and arm, without influencing the movable relief valve member.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. Tn a flushing valve of the type described, the combination of a valve housing, a main valve and its associated control piston and piston chamber, a relief valve associated with said piston chamber and provided with an operating stem, a lever fulcrumed at one end in the valve housing and pivotally connected at its mid-length to said valve stem, a spring associated with said lever and valve stem for yieldingly holding the relief valve to its seat, and a manually operated toe moving in the path of the free end of said lever so that in its full active stroke it will effect an opening and a closing of the relief valve.

2. In a scribed, the combination of a valve housing, a main valve and its associated control piston and piston chamber, a relief valve associated with said piston chamber, a rock shaft mounted in said housing, manual means for turning said rock shaft in one direction, a spring tending to turn said rock shaft in the other direction, an arm on the rock shaft constituting an operating toe, and a trip lever pivoted at its mid-length to said relief valve with one end having fulcrum bearing beneath an abutment on the valve housing and the other end projecting into the path of the operating toe aforesaid.

Signed at Chicago, Illinois, this 12th day of April, 1922.

ROBERT E. FIVEY.

flushing valve of the type de- 

